/Engine/Source/Runtime/Engine/Classes/Animation/AnimNode_DeadBlending.h
These decay rates can be controlled by theExtrapolationHalfLife_,ExtrapolationHalfLifeMin_ and `ExtrapolationHalfLifeMax_ parameters, which specify the approximate average, min, and max decay periods. More specifically they specify the "half-life" - or how it takes for the velocities to be decayed by half.
struct FAnimNode_DeadBlending : public [FAnimNode_Base](API\Runtime\Engine\Animation\FAnimNode_Base), public [IBoneReferenceSkeletonProvider](API\Runtime\Engine\Interfaces\IBoneReferenceSkeletonProvider)
FPoseLink
Source
Input Pose.